Merge pull request #34 from hermit-os/fstat

feat: add test for fstat

Author: mkroening

.github/workflows/ci.yml

@@ -81,6 +81,7 @@ jobs:
           tar -xvf opensbi-*-rv-bin.tar.xz opensbi-1.6-rv-bin/share/opensbi/lp64/generic/firmware/fw_jump.bin
       - run: cargo xtask ci c --arch ${{ matrix.arch }} --buildtype ${{ matrix.buildtype }} --target hello_world qemu ${{ matrix.flags }}
       - run: cargo xtask ci c --arch ${{ matrix.arch }} --buildtype ${{ matrix.buildtype }} --target fs qemu ${{ matrix.flags }}
+      - run: cargo xtask ci c --arch ${{ matrix.arch }} --buildtype ${{ matrix.buildtype }} --target fstat qemu ${{ matrix.flags }}
       - run: cargo xtask ci c --arch ${{ matrix.arch }} --buildtype ${{ matrix.buildtype }} --target http_server qemu ${{ matrix.flags }} --netdev ${{ matrix.netdev }}
       - run: cargo xtask ci c --arch ${{ matrix.arch }} --buildtype ${{ matrix.buildtype }} --target http_server_poll qemu ${{ matrix.flags }} --netdev ${{ matrix.netdev }}
       - run: cargo xtask ci c --arch ${{ matrix.arch }} --buildtype ${{ matrix.buildtype }} --target limits qemu ${{ matrix.flags }}
@@ -105,6 +106,7 @@ jobs:
       - run: meson compile -C build
       - run: ./build/hello_world
       - run: ./build/fs
+      - run: ./build/fstat
       - run: |
           ./build/http_server &
           curl localhost:9975

kernel

@@ -46,6 +46,7 @@ else
 endif
 
 executable('fs', 'src/fs.c', link_whole: hermit)
+executable('fstat', 'src/fstat.c', link_whole: hermit)
 executable('hello_world', 'src/hello_world.c', link_whole: hermit)
 executable('http_server', 'src/http_server.c', link_whole: hermit)
 executable('http_server_poll', 'src/http_server_poll.c', link_whole: hermit)

meson.build

@@ -0,0 +1,40 @@
+#include "print_assert.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+int test_stdio(int fildes) {
+    struct stat buf;
+
+    int fstat_status = fstat(fildes, &buf);
+    if (fstat_status == -1) {
+        perror("fstat() failed");
+        return -1;
+    }
+
+    fprintf(stderr, "mode = %#o\n", buf.st_mode);
+#ifdef __hermit__
+    print_assert((buf.st_mode & S_IFCHR) == S_IFCHR);
+#endif /* __hermit__ */
+
+    return 0;
+}
+
+int main(void) {
+    int stdin_status = test_stdio(STDIN_FILENO);
+    if (stdin_status == -1) {
+        return EXIT_FAILURE;
+    }
+
+    int stdout_status = test_stdio(STDOUT_FILENO);
+    if (stdout_status == -1) {
+        return EXIT_FAILURE;
+    }
+
+    int stderr_status = test_stdio(STDERR_FILENO);
+    if (stderr_status == -1) {
+        return EXIT_FAILURE;
+    }
+}